Air filter with a protruding inner filtering portion



FIG. 1 is a perspective view of an air filter with a protruding inner filtering portion;

FIG. 2 is a front side view of the air filter with the protruding inner filtering portion;

FIG. 3 is a rear side view of the air filter with the protruding inner filtering portion;

FIG. 4 is a right side view of the air filter with the protruding inner filtering portion;

FIG. 5 is a left side view of the air filter with the protruding inner filtering portion;

FIG. 6 is a cross-sectional view of the air filter with a protruding inner filtering portion taken along line 6—6 of FIG. 5;

FIG. 7 is a top side view of the air filter with the protruding inner filtering portion; and,

FIG. 8 is a bottom side view of the air filter with the protruding inner filtering portion.

The features shown in broken lines in FIGS. 1-8 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an air filter with a protruding inner filtering portion, as shown and described. 